SANDVIK 5R60 FOR WIRELINES WIRE DATASHEET Sandvik 5R60 is an austenitic stainless steel alloy suitable for service in less severe oil and gas wells. The grade is characterized by: Good resistance to general corrosion Better resistance to pitting than ASTM 304, because of the molybdenum content High tensile strength PRE* value: 25 * PRE, Pitting Resistance Equivalent = %Cr + 3.3 x %Mo + 16 x %N STANDARDS ASTM 316 UNS S31600 EN Number 1.4436 CHEMICAL COMPOSITION (NOMINAL) % C Si Mn P S Cr Ni Mo 0.04 0.6 1.2 0.030 0.015 17 11 2.6 FORMS OF SUPPLY Sandvik 5R60 precision wire is supplied cold drawn and degreased, in continuous lengths, without welds, on metallic spools. Product program Diameter Breaking load Weight mm in. N lbf kg/1000 m lb/1000 ft 2.083 0.082 5109 1149 27.5 18.4 2.337 0.092 6431 1446 34.6 23.2 2.667 0.105 8378 1883 45.0 30.2 2.743 0.108 8864 1992 47.6 32.0 3.175 0.125 11131 2491 63.8 42.8 3.810 0.150 15985 3587 91.4 61.27 4.064 0.160 18157 4082 103.8 69.60 MECHANICAL PROPERTIES Datasheet updated 6/16/2015 1:34:06 PM (supersedes all previous editions) 1 SANDVIK 5R60 FOR WIRELINES
Wire in Sandvik 5R60 is tested and certified in accordance with a minimum tensile strength. Proof strength is approximately 90 % of the tensile strength. Sandvik 5R60 is able, therefore, to resist high loads without permanent set of the wire. At 20 C (68 F) Proof strength, Rp0.2 Tensile strength, Rm Dimension MPa ksi MPa ksi in. mm 1350 196 1500 218 < 0.108 < 2.743 1260 183 1400 203 > 0.125 > 3.175 PHYSICAL PROPERTIES Density: 8.0 g/cm 3, 0.29 lb/in3 Specific heat capacity, at 20oC (68oF): 485 J/kgoC, 0.12 Btu/lb hof Thermal expansion: 30-100oC, 16.5 *10-6/ oc, 86-210oF, 9.5 *10-6/ of Thermal conductivity, at 20oC (68oF): 15 W/mo C, 9 Btu/ft. h of Permeability,at 20oC (68oF): 1.004 Resistivity,at 20oC (68oF): 0.76 μωm, 30.1 μωin. Modulus of Elasticity, at 20oC (68oF): 180 000 MPa, 26 100 ksi Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials. Datasheet updated 6/16/2015 1:34:06 PM (supersedes all previous editions) www.smt.sandvik.com/contact-us SMT.SANDVIK.COM
SANICRO 26MO FOR WIRELINES WIRE DATASHEET Sanicro 26Mo is a high-alloy austenitic stainless steel for service in highly corrosive conditions in oil and gas environments. The grade is characterized by: Very good resistance to stress corrosion cracking (SCC) in H2S, chloride and CO 2 environments Very good resistance to pitting in chloride-containing environments because of its high PRE* value of 43 minimum Very good resistance to general corrosion High mechanical strength and correspondingly high breaking loads * PRE, Pitting Resistance Equivalent = %Cr + 3.3 x %Mo + 16 x %N STANDARDS UNS N08926 W.Nr. 1.4529 STANDARDS CHEMICAL COMPOSITION (NOMINAL) % C Si Mn P S Cr Ni Mo Cu N 0.020 0.4 0.8 0.030 0.005 20.5 25 6.3 0.8 0.2 FORMS OF SUPPLY Slicklines Sanicro 26Mo slicklines are supplied cold drawn and degreased in continuous lengths. Slicklines Diameter Breaking load Weight mm in. N lbf kg/1000 m lb/1000 ft 2.083 0.082 5398 1 214 27.3 18.31 2.337 0.092 6805 1 530 34.4 23.05 2.667 0.105 8851 1 990 44.8 30.02 2.743 0.108 9365 2 105 47.4 31.76 3.175 0.125 12545 2 820 63.4 42.55 3.556 0.140 15740 3 541 79.6 53.37 3.810 0.150 18064 4 061 91.4 61.27 4.064 0.160 20557 4 621 103.8 69.60 Datasheet updated 9/18/2015 2:10:24 PM (supersedes all previous editions) 1 SANICRO 26MO FOR WIRELINES
Armor wire Sanicro 26Mo logging cable armor wire is supplied cold drawn and degreased in continuous lengths without welds in sizes according to the table. The standard surface is matt, providing reduced friction in the pre-form head and increased productivity. Other armor wire dimensions can be manufactured on request. Logging cable armor wire Diameter Breaking load Weight mm in. N lbf kg/1000 m lb/1000 ft 0.617 0.0243 495 111 2.39 1.60 0.787 0.0310 806 181 3.89 2.61 0.820 0.0323 875 197 4.22 2.83 0.909 0.0358 1075 242 5.19 3.48 1.130 0.0445 1660 373 8.02 5.38 MECHANICAL PROPERTIES Sanicro 26Mo is tested and certified in accordance with a minimum tensile strength. Proof strength is in the range of 85 % of the tensile strength. This means that Sanicro 26Mo can resist high loads without permanent set of the wire. Mechanical properties for slicklines, at 20oC (68oF) Proof strength Rp0.2 Tensile strength Rm MPa ksi MPa ksi 1350 195 1585 230 Mechanical properties for logging cable armor wire, at 20 C (68 F) Proof strength Rp0.2 Tensile strength Rm MPa ksi MPa ksi 1405 204 1655 240 CORROSION RESISTANCE Pitting Sanicro 26Mo can resist very high temperatures in aggressive environments without being attacked by pitting. All stainless steels have a critical pitting temperature above which there is a risk of pitting. Results of laboratoty tests of the critical pitting temperature (CPT) for Sanicro 26Mo and some other stainless steels, as a function of ph values in 3% NaCl solution, is shown in the diagram below. Datasheet updated 9/18/2015 2:10:24 PM (supersedes all previous editions) 2 SANICRO 26MO FOR WIRELINES
Hydrogen sulphide induced corrosion Sanicro 26Mo has been specially developed to be resistant in most common well conditions, including H2S and CO containing environments. 2 PHYSICAL PROPERTIES Density: 8.0 g/cm 3, 0.29 lb/in3 Thermal expansion: 20-100oC, 14x10-6/ oc, 68-210oF, 8x10-6/ of Thermal conductivity, at 20oC (68oF): 10 W/moC, 6 Btu/ft h of Resistivity: at 20 C (68 F), 0.96 μωm, 37.7 μωin Modulus of elasticity, at 20oC (68oF): 195 000 MPa, 283 000 ksi Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials. Datasheet updated 9/18/2015 2:10:24 PM (supersedes all previous editions) www.smt.sandvik.com/contact-us SMT.SANDVIK.COM
SANICRO 28 FOR WIRELINES WIRE DATASHEET Sanicro 28 is a high-alloy austenitic stainless steel suitable for service in highly corrosive oil and gas environments. The grade is characterized by: Very good corrosion resistance in H2S, CO 2 and chloride containing environments. Very good resistance to pitting owing to its high PRE* value of 38 minimum General corrosion comparable to or better than Alloy 825 Tensile strength equivalent to ASTM 316 Very good performance in elevated temperatures (geothermal wells) Entirely non-magnetic properties * PRE, Pitting Resistance Equivalent = %Cr + 3.3 x %Mo + 16 x %N STANDARDS Uns N08028 EnNumber 1.4563 EnName X 1 NiCrMoCu 31-27-4 CHEMICAL COMPOSITION (NOMINAL) % C Si Mn P S Cr Ni Mo Cu 0.020 0.6 2.0 0.025 0.010 27 31 3.5 1.0 FORMS OF SUPPLY Sanicro 28 slicklines are supplied cold drawn and degreased, on steel spools, in continuous lengths, without welds. Product program Diameter Breaking loads Weight mm in. N lbf kg/1 000 m lb/1 000 ft 2.083 0.082 5109 1149 27.5 18.4 2.337 0.092 6431 1446 34.6 23.2 2.667 0.105 8377 1883 45.0 30.2 2.743 0.108 8862 1992 47.6 32.0 3.175 0.125 11872 2669 63.8 42.8 3.810 0.150 17096 3843 91.4 61.27 Datasheet last updated 28/09/2015 16:51:03 (supersedes all previous editions) 1 SANICRO 28 FOR WIRELINES
Product program Diameter Breaking loads Weight mm in. N lbf kg/1 000 m lb/1 000 ft 4.064 0.160 19451 4373 103.8 69.60 MECHANICAL PROPERTIES Sanicro 28 is tested and certified in accordance with a minimum tensile strength. Proof strength is approximately 90 % of the tensile strength. Sanicro 28 is able, therefore, to resist high loads without permanent set of the wire. Proof strength Tensile strength Rp0.2 Rm MPa ksi MPa ksi 1350 200 1500 220 CORROSION RESISTANCE Pitting Sanicro 28 has very good resistance to pitting because of high contents of chromium and molybdenum. Critical pitting temperatures (CPT) as a function of the chloride content and ph are presented in Figures 1 and 2. Figure 1. CPT for various alloys in neutral chloride solutions at 300 mv SCE. Datasheet last updated 28/09/2015 16:51:03 (supersedes all previous editions) 2 SANICRO 28 FOR WIRELINES
Figure 2. CPT in 3 % NaCl as a function of ph at 600 mv SCE. Stress corrosion cracking (SCC) in chloride environments The combination of stresses up to the proof strength and chlorides leads to a risk of stress corrosion cracking. In austenitic steels the increased nickel content together with an increased stability against pitting corrosion will lead to an increased resistance against stress corrosion cracking. Datasheet last updated 28/09/2015 16:51:03 (supersedes all previous editions) 3 SANICRO 28 FOR WIRELINES
Figure 3. SCC resistance in oxygen-bearing (about 8 ppm) neutral chloride solutions. Testing time: 1 000 hours. Applied strength equal to proof strength at testing time. The curve for AISI 304/304L and 316/316L is based on experimental data and practical experience. The data for the other grades are based on test results of tube material. Stress corrosion cracking (SCC) in in H2S/Cl - environment Tensile specimens from cold-worked Sanicro 28 and Sandvik SAF 2205 were tested in the NACE TM-01-77 type of environment, modified in that the temperature was increased to 90oC (194oF). At this temperature, 100% H S at atmosperic pressure corresponds to 100 kpa (14.5 psi) NaCl varied up to 10%. 2 Datasheet last updated 28/09/2015 16:51:03 (supersedes all previous editions) 4 SANICRO 28 FOR WIRELINES
Figure 4. Constant-load SCC tests in acidified aqueous solution. Stress = 0.2% proof strength at testing temperature, 90oC (194oF). Testing time 500 hours. Sanicro 28 and Sandvik SAF 2205 tested in the cold worked condition. AISI 420 quenched and tempered. Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials. Datasheet last updated 28/09/2015 16:51:03 (supersedes all previous editions) www.smt.sandvik.com/contact-us SMT.SANDVIK.COM
SANICRO 56MO FOR WIRELINES WIRE DATASHEET Sanicro 56Mo is a nickel-base nickel-chromium-molybdenum alloy suitable for service in the most extreme corrosive oil and gas environments. The grade is characterized by: Superior corrosion resistance in H2S, CO 2 and chloride containing environments Excellent resistance to pitting corrosion owing to its high PRE* value of 68 Excellent corrosion resistance in hydrochloric acid Good performance in high temperature wells up to 250 C (480 F) High strength tensile strength higher than Sanicro 26Mo (UNS N08926) * PRE (Pitting Resistance Equivalent) = %Cr + 3.3 x %Mo + 16 x %N STANDARDS UNS N10276 W.Nr. 2.4819 STANDARDS CHEMICAL COMPOSITION (NOMINAL), % C Si Mn P S Cr Ni Mo W Fe Co 0.010 0.08 1.0 0.030 0.015 16 Bal. 16 3.5 4.5 <2.5 FORMS OF SUPPLY Sanicro 56Mo slicklines are supplied cold drawn and degreased in continuous lengths. All lines are 100% ECtested. Slicklines Diameter Breaking load Weight mm in. N lbf kg/1000 m lb/1000 ft 2.743 0.108 10637 2391 52.0 35.0 3.175 0.125 14251 3204 69.7 46.8 MECHANICAL PROPERTIES Sanicro 56Mo is tested and certified in accordance with a minimum tensile strength. Proof strength is in the range of 85% of the tensile strength. This means that Sanicro 56Mo can resist high loads without permanent set of the wire. Datasheet updated 12/17/2015 3:19:49 PM (supersedes all previous editions) 1 SANICRO 56MO FOR WIRELINES
Mechanical properties for slicklines, at 20oC (68oF) Proof strength Rp0.2* Tensile strength Rm MPa ksi MPa ksi 1530 222 1800 261 * Corresponds to 0.2% yield strength CORROSION RESISTANCE Sanicro 56Mo has excellent corrosion resistance in a wide range of aggressive environments occurring in downhole environments. It resists general corrosion, localized pitting corrosion and environmental cracking in a wide range of aggressive media. Pitting and crevice corrosion The relative resistance of alloys to pitting corrosion can be estimated based on the chemical composition using the Pitting Resistance Equivalent number (PRE). Alloys with higher PRE values generally have better corrosion resistance compared to alloys with lower PRE values. There are several different equations available for calculating the PRE from the chemical composition. In this document the equation specified in NACE MR0175 is used: *PRE = %Cr+3.3(%Mo+0.5W)+16%N Pitting resistance equivalent numbers (PRE) for some slickline alloys. Alloy UNS PRE* Sanicro 56Mo N10276 68 Sanicro 26Mo N08926 43 Sanicro 28 N08028 38 Stress corrosion cracking The high levels of nickel, molybdenum and chromium in Sanicro 56Mo make the alloy highly resistant to sour environments containing high levels of H2S, CO 2 and chlorides. The NACE standard MR 0175 is widely used for selecting material for use in H2S-containing environments in the oil and gas industry. According to NACE MR0175 Sanicro 56Mo (UNS N10276) can be used in up to 1000 psi partial pressure H2S at 232 C (450 F) with no limitation on the chloride concentration. Below 204 C (400 F) there is no limit on the H2S level or chloride concentration. PHYSICAL PROPERTIES Density: 8.8 g/cm 3, 0.32 lb/in Resistivity: at 20 C (68 F), 1.16 µωm, 45.5µΩin Modulus of elasticity: at 20 C (68 F), 205 000 MPa (29 700 ksi) Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials. Datasheet updated 12/17/2015 3:19:49 PM (supersedes all previous editions) www.smt.sandvik.com/contact-us SMT.SANDVIK.COM
SANDVIK SAF 2205 FOR WIRELINES WIRE DATASHEET Sandvik SAF 2205 is a duplex (austenitic/ferritic) stainless steel suitable for service in corrosive oil and gas wells. The grade is characterized by: High resistance to stress corrosion cracking (SCC) in chloride and CO 2 containing environments High resistance to pitting owing to its high PRE* value of 35 minimum High resistance to general corrosion High tensile strength Sandvik SAF 2205 is suitable for service in wells with a H2S partial pressure of max. 3 psi. Service temperature: -50 to 280 C (-60 to 540 F) * PRE, Pitting Resistance Equivalent = %Cr + 3.3 x %Mo + 16 x %N STANDARDS Uns S31803, S32205 EnNumber 1.4462 CHEMICAL COMPOSITION (NOMINAL) % C Si Mn P S Cr Ni Mo N 0.030 1.0 2.0 0.030 0.015 22 5.5 3.2 0.18 FORMS OF SUPPLY Sandvik SAF 2205 for corrosive oil and gas environments is supplied in the form of cold-drawn and degreased wire in continuous lengths, without welds, on metallic spools. PRODUCT PROGRAM Sandvik SAF 2205 in corrosive oil and gas environments Dimension Breaking load Weight mm in. N lb kg/1000 m lb/1000 ft 2.083 0.082 5790 1302 26.6 17.81 2.337 0.092 7288 1639 33.5 22.42 2.667 0.105 9494 2134 43.7 29.21 2.743 0.108 10044 2258 46.2 30.90 3.175 0.125 13455 3025 61.9 41.39 3.556 0.140 16886 3795 77.6 52.0 Scheda tecnica aggiornata 09/12/2015 09:19:18 (sostituisce tutte le edizioni precedenti) 1 SANDVIK SAF 2205 FOR WIRELINES
Sandvik SAF 2205 in corrosive oil and gas environments Dimension Breaking load Weight mm in. N lb kg/1000 m lb/1000 ft 3.810 0.150 19384 4356 89.1 59.7 4.064 0.160 20757 4665 101.12 67.82 MECHANICAL PROPERTIES Sandvik SAF 2205 in corrosive oil and gas environments Sandvik SAF 2205 is tested and certified in accordance with minimum tensile strength. The proof strength is in the range of 90 % of the tensile strength. Sandvik SAF 2205 is thus able to resist high loads without permanent set of the wire. Modulus of elasticity at 20oC (68oF): 200 000 MPa (29 000 ksi) At 20 C (68 F) Proof strength, Rp0.2 Tensile strength, Rm MPa ksi MPa ksi 1530 222 1700 246 CORROSION RESISTANCE Chloride induced corrosion In seawater and other high chloride content environments, Sandvik SAF 2205 has better corrosion resistance than stainless steel of type AISI 316 owing to the high PRE-value. This can be demonstrated by e.g. salt spray testing where samples are sprayed with water containing 5 % NaCl at 35 C and checked every 24 hours. See the diagram below. Neutral salt spray test according to ASTM B 117 Testing time, hours Scheda tecnica aggiornata 09/12/2015 09:19:18 (sostituisce tutte le edizioni precedenti) 2 SANDVIK SAF 2205 FOR WIRELINES
Critical pitting temperature In high saline content environments such as salt water, the aggressiveness of the environment increases as the temperature rises. All stainless steels have a critical pitting temperature above which there is a risk of pitting. The critical pitting temperature for Sandvik SAF 2205 and AISI 316 in seawater is shown in the diagram. Crevice corrosion Crevice corrosion is in principle the same as pitting corrosion, but occurs in crevices and cracks, e.g. between flange joints, under deposits on the metal surface or in welds with incomplete penetration. Crevice corrosion often occurs at lower temperatures and at lower chloride contents than those necessary for pitting to occur. Resistance is influenced by the content of Cr, Mo and N in the same way as pitting resistance. Stress corrosion cracking Stress corrosion cracking leading to catastrophic failures can occur with standard austenitic steels. The application of duplex stainless steels like Sandvik SAF 2205 will reduce this risk. Scheda tecnica aggiornata 09/12/2015 09:19:18 (sostituisce tutte le edizioni precedenti) 3 SANDVIK SAF 2205 FOR WIRELINES
Oil & gas applications Sandvik SAF 2205 is, thanks to its duplex structure, significantly more corrosion resistant than ASTM 316. PHYSICAL PROPERTIES Resistivity Temperature, C μωm Temperature, F μωin. 20 0.74 68 29.1 100 0.85 200 33.1 200 0.96 400 39.8 300 1.00 600 43.3 400 1.10 800 43.3 Modulus of elasticity at 20oC (68oF): 200 000 MPa (29 000 ksi) Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials. Scheda tecnica aggiornata 09/12/2015 09:19:18 (sostituisce tutte le edizioni precedenti) www.smt.sandvik.com/contact-us SMT.SANDVIK.COM
SANDVIK CS-9A FOR WIRELINES WIRE DATASHEET Sandvik CS-9A is a carbon steel wire according to API9A for service in non-corrosive conditions in oil and gas wells. STANDARDS DIN 17223 part 1 CHEMICAL COMPOSITION (NOMINAL) % C Si Mn P S Cu 0.7 0.35 0.7 0.040 0.040 0.20 FORMS OF SUPPLY Sandvik CS-9A is supplied in the form of cold drawn and oiled wire in continuous lengths without welds. Sandvik CS-9A is available in two alternatives; ST (standard tensile) and UHT (ultra high tensile). Dimension Breaking load Weight mm in. kn lbf kg/1000m lbs/1000ft ST/UHT ST/UHT 2.083 0.082 5.53/6.56 1244/1475 26.5 17.8 2.337 0.092 6.97/8.26 1566/1857 33.4 22.4 2.667 0.105 8.89/10.76 1998/2419 43.5 29.2 2.743 0.108 9.10/11.38 2114/2559 46.0 30.9 3.175 0.125 12.6/15.25 2832/3428 61.6 41.4 MECHANICAL PROPERTIES Sandvik CS-9A is tested and certified in accordance with minimum tensile strength. At 20ºC (68ºF) Tensile strength, Rm Dimension Standard tensile Ultra high tensile mm in. MPa ksi MPa ksi 2.083 0.082 >1624 >236 >1926 >279 2.337 0.092 >1624 >236 >1926 >279 2.667 0.105 >1591 >231 >1926 >279 Datasheet updated 12/9/2015 9:19:18 AM (supersedes all previous editions) 1 SANDVIK CS-9A FOR WIRELINES
Tensile strength, Rm Dimension Standard tensile Ultra high tensile mm in. MPa ksi MPa ksi 3.175 0.125 >1591 >231 >1926 >279 PHYSICAL PROPERTIES Density: 7.8 g/cm 3, 0.28 lb/in3 Modulus of elasticity: 206 000 MPa, 29 800 ksi Thermal expansion 20-100º C 11*10-6 / º C 68-210º F 8 * 10-6/ º F Thermal conductivity: 45 W/mº C, 26 Btu/ft h º F Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials. Datasheet updated 12/9/2015 9:19:18 AM (supersedes all previous editions) www.smt.sandvik.com/contact-us SMT.SANDVIK.COM
SANDVIK SAF 2507 FOR WIRELINES WIRE DATASHEET Sandvik SAF 2507 is a super-duplex (austenitic-ferritic) stainless steel for service in highly corrosive conditions. The grade is characterized by: Excellent resistance to stress corrosion cracking (SCC) in chloride-bearing environments Excellent resistance to pitting and crevice corrosion High resistance to general corrosion High resistance to erosion corrosion and corrosion fatigue High mechanical strength and correspondingly high breaking loads in its slickline wire product form STANDARDS UNS S32750 EN Number 1.4410 EN Name X 2 CrNiMoN 25-7-4 SS 2328 CHEMICAL COMPOSITION (NOMINAL) % C Si Mn P S Cr Ni Mo Others 0.030 0.8 1.2 0.035 0.015 25 7 4 N=0.3 FORMS OF SUPPLY Sandvik SAF 2507 slicklines are supplied cold drawn and degreased, in continuous lengths, without welds, on metallic spools. Diameter Breaking load Weight mm inch N lbf kg/1000 m lb/1000 ft 2.083 0.082 6134 1379 26.6 17.8 2.337 0.092 7721 1736 33.5 22.4 2.743 0.108 10637 2391 46.1 30.9 3.175 0.125 14251 3204 61.8 41.4 3.556 0.140 17877 4019 77.5 52.1 3.810 0.150 19382 4357 88.9 59.8 4.064 0.160 22052 4957 101.2 68.0 MECHANICAL PROPERTIES Datasheet updated 2015-09-18?? 2:29:35 (supersedes all previous editions) 1 SANDVIK SAF 2507 FOR WIRELINES
Wire in Sandvik SAF 2507 is tested and certified in accordance with a minimum tensile strength. Proof strength is approximately 90% of the tensile strength. Sandvik SAF 2507 is able, therefore, to resist high loads without permanent set of the wire. At 20 C (68 F) Diameter Proof strength, R p0.2* Tensile strength, Rm mm inch MPa ksi MPa ksi 2.083-3.556 0.082-0.140 1620 235 1800 261 3.810-4.064 0.150-0.160 1530 222 1700 247 * R p0.2 corresponds to 0.2% offset yield strength. CORROSION RESISTANCE General corrosion Sandvik SAF 2507 is highly resistant to corrosion by organic acids, e.g. experience less than 0.05 mm/year in 10% formic and 50% acetic acid where ASTM 316L has a corrosion rate higher than 0.2 mm/year. Pure formic acid, see Figure 2. Sandvik SAF 2507 remains resistant even in contaminated acids. Figure 3 and Figure 4 show results from tests of Sandvik SAF 2507 and various stainless steels and nickel alloys in acetic acid contaminated with chlorides which in practice are frequently present in processes. Figure 2. Isocorrosion diagram in formic acid. The curves represent a corrosion rate of 0.1 mm/year (4 mpy) in stagnant test solution. Datasheet updated 2015-09-18?? 2:29:35 (supersedes all previous editions) 2 SANDVIK SAF 2507 FOR WIRELINES
Figure 3. Corrosion rate of various alloys in 80% acetic acid with 2000 ppm chloride ions at 90 C (194 F). Figure 4. Corrosion rate of various alloys in concentrated acetic acid with 200 ppm chloride ions. Practical experience with Sandvik SAF 2507 in organic acids, e.g. in teraphthalic acid plants, has shown that this alloy is highly resistant to this type of environment. The alloy is therefore a competitive alternative to high alloyed austenitics and nickel alloys in applications where standard austenitic stainless steels corrode at a high rate. Resistance to inorganic acids is comparable to, or even better than that of high alloy austenitic stainless steels in certain concentration ranges. Figures 5 to 7 show isocorrosion diagrams for sulphuric acid, sulphuric acid contaminated with 2000 ppm chloride ions, and hydrochloric acid, respectively. Datasheet updated 2015-09-18?? 2:29:35 (supersedes all previous editions) 3 SANDVIK SAF 2507 FOR WIRELINES
Figure 5. Isocorrosion diagram in naturally aerated sulphuric acid. The curves represent a corrosion rate of 0.1 mm/year (4 mpy) in a stagnant test solution. Figure 6. Isocorrosion diagram, 0.1 mm/year (4 mpy) in a naturally aerated sulphuric acid containing 2000 ppm chloride Datasheet updated 2015-09-18?? 2:29:35 (supersedes all previous editions) 4 SANDVIK SAF 2507 FOR WIRELINES
ions. Figure 7. Isocorrosion diagram in a hydrochloric acid. The curves represent a corrosion rate of 0.1 mm/year (4 mpy) in stagnant test solution. Pitting and crevice corrosion The pitting and crevice corrosion resistance of stainless steel is primarily determined by the content of chromium, molybdenum and nitrogen. One parameter for comparing the resistance to pitting in chloride environments is the PRE number (Pitting Resistance Equivalent). The PRE is defined as, in weight-% PRE = %Cr + 3.3 x %Mo + 16 x %N For duplex stainless steels the pitting corrosion resistance is dependent on the PRE value in both the ferrite phase and the austenite phase, so that the phase with the lowest PRE value will be limiting for the actual pitting corrosion resistance. In Sandvik SAF 2507 the PRE value is equal in both phases, which has been achieved by a careful balance of the elements. The minimum PRE value for Sandvik SAF 2507 wirelines is 42.5. Stress corrosion cracking Sandvik SAF 2507 has excellent resistance to chloride induced stress corrosion cracking (SCC). Figure 8 clearly demonstrates that Sandvik SAF 2507 has better SCC resistance in chloride solutions in comparison with several duplex and austenitic alternative grades in the annealed condition. There were no signs of SCC in Sandvik SAF 2507 up to 1000 ppm Cl -/300 C (572 F) and 10000 ppm Cl -/250 C (482 F). The super-duplex stainless steel Sandvik SAF 2507 has a higher resistance to SCC in in sour environments in oil and gas production than lower alloyed duplex stainless steels. The partial pressure of hydrogen sulphide should not exceed 3 psi (0.20 bar). Datasheet updated 2015-09-18?? 2:29:35 (supersedes all previous editions) 5 SANDVIK SAF 2507 FOR WIRELINES
Figure 8. SCC resistance in oxygen-bearing (abt. 8 ppm) neutral chloride solutions. Testing time 1000 hours. Applied stress equal to proof strength at testing temperature. Erosion corrosion The mechanical properties combined with corrosion resistance give Sandvik SAF 2507 a good resistance to erosion corrosion. Testing in sand containing media has shown that Sandvik SAF 2507 has an erosion corrosion resistance better than corresponding austenitic stainless steels. Figure 9 below shows the relative mass loss rate of the duplex Sandvik SAF 2507, Sandvik SAF 2205 and an austenitic 6Mo+N type steel after exposure to synthetic seawater (ASTM D-1141) containing 0.025-0.25% silica sand at a velocity of 8.9-29.3 m/s (average of all tests is shown). Datasheet updated 2015-09-18?? 2:29:35 (supersedes all previous editions) 6 SANDVIK SAF 2507 FOR WIRELINES
Figure 9. Relative mass loss rate after testing for resistance to erosion corrosion. CORROSION FATIGUE Duplex stainless steels which have a high tensile strength usually have a high fatigue limit and high resistance to both fatigue and corrosion fatigue. The high fatigue strength of Sandvik SAF 2507 can be explained by its good mechanical properties, while its high resistance to corrosion fatigue has been proven by fatigue testing in corrosive media. PHYSICAL PROPERTIES Density: 7.8 g/cm, 0.28 lb/in 3 3 Specific heat capacity Metric units Imperial units Temperature, C J/(kg C) Temperature, F Btu/(lb F) 20 490 68 0.12 100 505 200 0.12 200 520 400 0.12 300 550 600 0.13 400 585 800 0.14 THERMAL CONDUCTIVITY Metric units, W/(m C) Temperature, C 20 100 200 300 400 Sandvik SAF 2507 14 15 17 18 20 ASTM 316L 14 15 17 18 20 Imperial units, Btu/(ft h F) Datasheet updated 2015-09-18?? 2:29:35 (supersedes all previous editions) 7 SANDVIK SAF 2507 FOR WIRELINES
Temperature, F 68 200 400 600 800 Sandvik SAF 2507 8 9 10 11 12 ASTM 316L 8 9 10 10 12 THERMAL EXPANSION Sandvik SAF 2507 has a coefficient of thermal expansion close to that of carbon steel. This gives Sandvik SAF 2507 definite design advantages over austenitic stainless steels in equipment comprising of both carbon steel and stainless steel. The values given below are average values in the temperature ranges. Metric units, x10-6 / C Temperature, C 30-100 30-200 30-300 30-400 Sandvik SAF 2507 13.5 14.0 14.0 14.5 Carbon steel 12.5 13.0 13.5 14.0 ASTM 316L 16.5 17.0 17.5 18 Imperial units, x10-6 / F Temperature, F 86-200 86-400 86-600 86-800 Sandvik SAF 2507 7.5 7.5 8.0 8.0 Carbon steel 6.8 7.0 7.5 7.8 ASTM 316L 9.0 9.5 10.0 10.0 Figure 1. Thermal expansion, per C (30-100 C, 86-210 F). Resistivity Temperature, C μωm Temperature, F μωin 20 0.83 68 32.5 100 0.89 200 34.9 200 0.96 400 37.9 300 1.03 600 40.7 400 1.08 800 43.2 Modulus of elasticity, (x103). Metric units and imperial units Temperature, C MPa Temperature, F ksi 20 200 68 29.0 100 194 200 28.2 200 186 400 27.0 Datasheet updated 2015-09-18?? 2:29:35 (supersedes all previous editions) 8 SANDVIK SAF 2507 FOR WIRELINES
Modulus of elasticity, (x103). Metric units and imperial units Temperature, C MPa Temperature, F ksi 300 180 600 26.2 Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials. Datasheet updated 2015-09-18?? 2:29:35 (supersedes all previous editions) www.smt.sandvik.com/contact-us SMT.SANDVIK.COM